Use of the Parastep I™ System is an energy consuming, cardiovascular workout that requires commitment by the user to achieve results. Users have reported that energy expenditure during walks using functional neuromuscular stimulation is similar to the energy expenditure requirements while using long leg braces.
Energy expenditure, however, may decrease over time as the user's walking speed and proficiency with the system improves. Users have experienced an increase in energy efficiency with increased system use.